.tui-scroll-top { width: 76rpx; height: 76rpx; background: rgba(255, 255, 255, .98); border: 1rpx solid #BCBCBC; display: flex; align-items: center; justify-content: center; border-radius: 50%; position: fixed; z-index: 999999; /* -webkit-transform: translateZ(0); transform: translateZ(0); */ /* -webkit-overflow-scroll: touch; */ } .tui-scroll-top-img { width: 48rpx; height: 48rpx; display: block; }